74LVC2G126DC,125

Overview

The Nexperia 74LVC2G126DC,125 is a dual bus buffer and line driver featuring three-state outputs controlled by active-high output enable inputs (nOE). It operates within a supply voltage range of 1.65 V to 5.5 V and utilizes Schmitt-trigger inputs for tolerance against slow signal transitions. The device incorporates IOFF circuitry to prevent backflow current during partial power-down states. It is housed in an 8-lead VSSOP plastic package (SOT765-1) with a body width of 2.3 mm. The component supports direct interfacing with TTL levels and complies with JEDEC standards for various voltage ranges.

Feature Summary

• Provides dual non-inverting buffering with three-state output control via dedicated enable pins
• Features overvoltage tolerant inputs allowing operation in mixed 3.3 V and 5 V logic environments
• Includes IOFF circuitry to disable outputs and prevent damaging backflow currents when powered down
• Schmitt-trigger action at all inputs ensures tolerance for slower input rise and fall times

Applications

• Mixed voltage translation between 3.3 V and 5 V devices
• Partial power-down mode applications requiring isolation of powered-down sections
• Bus buffering and line driving in systems with slow signal transition rates

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a dual-channel buffer with three-state outputs is required for mixed-voltage interfaces. The VSSOP8 package suits designs needing compact surface-mount solutions. Ensure the application benefits from Schmitt-trigger input characteristics for noise immunity on slow signals. Confirm that the IOFF feature aligns with the system's power management strategy for preventing backflow currents.

Part Context

This part belongs to the 74LVC family of low-voltage CMOS logic devices. It serves as a dual buffer/line driver variant within the broader 74-series logic portfolio. The DC suffix specifically denotes the VSSOP8 package type, distinguishing it from other physical form factors like TSSOP or XSON available in the same logical series.

Replacement Considerations

Check for alternative packages such as 74LVC2G126DP (TSSOP8) if pin compatibility allows. Verify functional equivalence with other 74LVC2G126 variants before substitution.